We made it work for emails. And guessing an email of someone (which is hard to do) something that stopped us to adopt emails.

if its someone you have him in your friendcircle->app

I believe we need a proper open identity system in general but this could be a start.

The solution wont be facebook.com/nickname nor vox.io/nickname

It will be providerOrContextOrWorkplaces.com/name maybe

I trust a verbal number exchange far more than a verbal email/id exchange.

why?

How do you spell that no wait did you say M is that upper or lower case how do I type an underscore into this thing oh the word underscore was that .net or .biz too late I typed .com automatically.

The places I've seen that give automatic email addresses have used a formula like first initial, last name, autoincrementing number. I think this is a pretty good system, but if you go worldwide you're going to get nice big numbers - entering name and number almost exactly like you do already. But if you misspell something based on a verbal communication it breaks harder.

realy [email protected] is unique looking up some one by name in a countrys phone book is not!

How may John Smith's are there in your country ?

Why not use the same system any web service in existence already uses - nicknames? Any text string is still easier to remember than an arbitrary number.

I've been using the nick 'brk' for maybe 20 years, but I still frequently come across random places where it has already been taken.

So, you'd need a nick registry, like domain names, and you'd run into issues with your friends that have "common" nicks having to register and use a different name. I think this merely trades one well-known set of limitations for a much different and less understood set of limitations without actually truly solving anything.